Slide assembly for extensible tables



July 7, 1970 w. H. CAMPBELL SLIDE ASSEMBLY FOR EXTENSIBLE TABLES 5 Sheets-Sheet 1 Filed May 20, 1968 INVENTOR WILL/AM CAMPBELL BY Mali/u fig ATTORNEY July 7, 1970 w. H. CAMPBELL SLIDE ASSEMBLY FOR EXTENSIBLE TABLES 3 Sheets-Sheet 8 Filed May 20, 1968 w mv mm Q INVENTOR W/LL/AM H. CAMPBELL BY M ATTORNEY July 7,' 1970 w. H. CAMPBELL SLIDE ASSEMBLY FOR EXTENSIBLE TABLES 3 Sheets-Sheet 5 Filed May 20, 1968 M SD INVENTOR WILL/AM H. CAMPBELL ATTORNEY United States Patent Otfice 3,519,315 Patented July 7, 1970 3,519 315 SLIDE ASSEMBLY FOR EXTENSIBLE TABLES William H. Campbell, Long Meadow, Mass., assignor to Cooper Slide Sales, Inc., Genesee, Pa., a corporation of Pennsylvania Filed May 20, 1968, Ser. No. 730,328 Int. Cl. F16c 29/00 U.S. Cl. 3083.6 1 Claim ABSTRACT OF THE DISCLOSURE A slide assembly is provided for the underside of a table for the purpose of supporting an extensible table leaf so that an additional leaf may be installed. The improvement comprises the provision of a clip which functions in the closed position of the assembly to secure and accurately position the extensible leaf against the table top both in the initial installation and subsequent use.

This invention relates generally to extension tables, and more particularly to an extension table slide of sheet metal construction.

It is an object of this invention to provide a nested element slide which Will more accurately close than heretofore.

Another object of this invention is to provide a slide which secures from opening in the closed position.

Still another object of this invention is to provide a simple three piece sheet metal slide arrangement having improved characteristics which can be easily and economically manufactured.

Other objects and attendant advantages of this invention Will become more readily apparent and understood from the following detailed specification and accomoanving drawings in which:

FIG. 1 is a perspective view, partly broken away, of a table top showing the leaves moved outwardly with the improved slide in open position;

FIG. 2 is an exploded view of the slide assembly;

FIG. 3 is a detailed side elevation of FIG. 1;

FIG. 4 is a bottom view of one of the slide assemblies as installed; and

FIG. 5 is an enlarged detailed illustration, partly in section taken on line 55 of FIG. 3.

Referring now to the drawings, FIGS. 1, 3 and 4 illustrate slide assemblies as they are attached to the extensible leaves comprising'a table top. The left hand leaf 12 is shown separated from the right hand leaf 14 when the slides 10 are in the open position depicted. When the slides 10 are closed, the leaves 12 and 14 are in edge juxtaposition (not shown). Whether the assembly of a silde 10 to a leaf 14 (or 12) is done by installing the se curing screws 42 in the open position or the closed position, it always has been difficult to assume accuracy of this juxtaposition because of the play between the movable parts.

As shown in FIG. 2, the assembly 10 employs an outer slide member 16 and an inner slide member 18. Both have upper horizontal flanges 20 formed from the sheet metal in opposite directions. Both have downturned edges 22 on the edges of the flanges 20.

An upper vertical web 24 depends from the flange 20 of the outer slide member 16 and a slightly wider upper vertical web 26 depends from the flange 20 of the inner slide member 18.

A guide slot in the outer slide member 16 is formed from the metal below upper vertical web 24 comprising a horizontal web 28, a lower vertical web 32, and a bottom flange 36.

A runner arrangement of complementary fit to the above-mentioned guide slot is similarly formed in the inner slide member 18 by forming the metal below the upper vertical Web 26 into a horizontal web 30, lower vertical web 34 and a bottom flange 38.

To keep these slide members 16 and 18 nested together, a U shaped retainer 44 having stiflening ribs 46 embraces them from below and by means of a flange 48 is secured by spot welds 50 to the upper horizontal flange 20 of the former as shown in FIGS. 2 and 5.

Lanced-out stop tabs 52 and 54 are provided near the ends of slide member 18. These contact the retainer 44 at the desired limits of slide action.

In order to allow the maximum extension of one slide 18 with respect to the other slide 16, it is necessary to locate the retainer 44 near the distant end of slide member 16, that is the end remote from the apertured dimples 40 provided for fasteners 42.

In the closed position of the slide assembly 10, Le, When the retainer 44 is abutting the stop tab 54 in member 18, there is a lack of embracing means at the opposite end. This in manufacture, has sometimes cause the as sembly of the slide members 16 and 18 to the table tops 12 and 14 to be in a diverging relationship corresponding to the amount of separation at the end in question.

To overcome this, a locking clip 56 is lanced from the lower vertical web 32 of slide 16 in position to catch the end of lower vertical web 34 in a resilient grip when the slide assembly 10 is closed.

Besides positioning the slide members 16 and 18 for correct assembly to the table tops 12 and 14, the clip 56 resists the separation of the latter and further assures their accurate registration laterally each time the table is closed.

If desired, instead of providing locking clip 56 as indictaed in FIG. 2, the end of the web 32 can be extended and then bent back in a U-shape form to form the equiva lent of locking clip 56 for locking the slide members 16 and 18 together as prevously described.

Obviously many modifications and variations of the present invention are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claim the invention may be practiced otherwise than as specifically described.

What is claimed is:

1. In a slide assembly for an extension table, comprising, a first slide member formed of strong and rigid metallic material and having a top horizontal flange merging into a vertical wall which in turn merges into a U-shaped depending extension open at its side, a second slide memher having the same form as the first member and with with U-shaped extension so reduced in size as to fit within the like extension of the first member, the flanges of both members having spaced apertures, a strap disposed near one end of one of said members and secured thereto, said strap having parallel legs embracing said two members, the member opposite that carrying said strap being provided near each end with a finger for limit control of the extension of said two slide members, the improvement comprising means for locking the ends of said slide members opposite said strap together when said slide members are in a closed juxtaposition, comprising a longitudinally lanced-out locking clip integral with and latterally protrusive from the inside of the U-shaped depending extension of the first said slide member proximate an end of the first said slide member, said locking clip having an openly bent end and being inwardly formed adjacent said openly bent end for receiving and gripping the other said slide member laterally against said slide member having the locking clip means.

References Cited UNITED STATES PATENTS Wiedeman 308-3.6 Miller 312-333 Meyer 312-333 X Galazzi.

Duncan 308-36 X Cooper 308-36 Edelson 308-3.6 Gutner 3083.6 X

Green 308-3.6 Cooper 308-36 Meyer 308-3.8 Mutchnik 308-36 MARTIN P. SCHWADRON, Primary Examiner 

